TESTING/LIN/schkgb.f(3)

NAME
TESTING/LIN/schkgb.f

SYNOPSIS

  Functions/Subroutines
subroutine schkgb (dotype, nm, mval, nn, nval, nnb, nbval, nns, nsval, thresh, tsterr, a, la, afac, lafac, b, x, xact, work, rwork, iwork, nout)
SCHKGB

Function/Subroutine Documentation

  subroutine schkgb (logical, dimension( * ) dotype, integer nm, integer, dimension( * ) mval, integer nn, integer, dimension( * ) nval, integer nnb, integer, dimension( * ) nbval, integer nns, integer, dimension( * ) nsval, real thresh, logical tsterr, real, dimension( * ) a, integer la, real, dimension( * ) afac, integer lafac, real, dimension( * ) b, real, dimension( * ) x, real, dimension( * ) xact, real, dimension( * ) work, real, dimension( * ) rwork, integer, dimension( * ) iwork, integer nout)

SCHKGB

Purpose:

    !>
    !> SCHKGB tests SGBTRF, -TRS, -RFS, and -CON
    !>

Parameters
    DOTYPE

    !>          DOTYPE is LOGICAL array, dimension (NTYPES)
    !>          The matrix types to be used for testing.  Matrices of type j
    !>          (for 1 <= j <= NTYPES) are used for testing if DOTYPE(j) =
    !>          .TRUE.; if DOTYPE(j) = .FALSE., then type j is not used.
    !>

    NM

    !>          NM is INTEGER
    !>          The number of values of M contained in the vector MVAL.
    !>

    MVAL

    !>          MVAL is INTEGER array, dimension (NM)
    !>          The values of the matrix row dimension M.
    !>

    NN

    !>          NN is INTEGER
    !>          The number of values of N contained in the vector NVAL.
    !>

    NVAL

    !>          NVAL is INTEGER array, dimension (NN)
    !>          The values of the matrix column dimension N.
    !>

    NNB

    !>          NNB is INTEGER
    !>          The number of values of NB contained in the vector NBVAL.
    !>

    NBVAL

    !>          NBVAL is INTEGER array, dimension (NNB)
    !>          The values of the blocksize NB.
    !>

    NNS

    !>          NNS is INTEGER
    !>          The number of values of NRHS contained in the vector NSVAL.
    !>

    NSVAL

    !>          NSVAL is INTEGER array, dimension (NNS)
    !>          The values of the number of right hand sides NRHS.
    !>

    THRESH

    !>          THRESH is REAL
    !>          The threshold value for the test ratios.  A result is
    !>          included in the output file if RESULT >= THRESH.  To have
    !>          every test ratio printed, use THRESH = 0.
    !>

    TSTERR

    !>          TSTERR is LOGICAL
    !>          Flag that indicates whether error exits are to be tested.
    !>

    A

    !>          A is REAL array, dimension (LA)
    !>

    LA

    !>          LA is INTEGER
    !>          The length of the array A.  LA >= (KLMAX+KUMAX+1)*NMAX
    !>          where KLMAX is the largest entry in the local array KLVAL,
    !>                KUMAX is the largest entry in the local array KUVAL and
    !>                NMAX is the largest entry in the input array NVAL.
    !>

    AFAC

    !>          AFAC is REAL array, dimension (LAFAC)
    !>

    LAFAC

    !>          LAFAC is INTEGER
    !>          The length of the array AFAC. LAFAC >= (2*KLMAX+KUMAX+1)*NMAX
    !>          where KLMAX is the largest entry in the local array KLVAL,
    !>                KUMAX is the largest entry in the local array KUVAL and
    !>                NMAX is the largest entry in the input array NVAL.
    !>

    B

    !>          B is REAL array, dimension (NMAX*NSMAX)
    !>          where NSMAX is the largest entry in NSVAL.
    !>

    X

    !>          X is REAL array, dimension (NMAX*NSMAX)
    !>

    XACT

    !>          XACT is REAL array, dimension (NMAX*NSMAX)
    !>

    WORK

    !>          WORK is REAL array, dimension
    !>                      (NMAX*max(3,NSMAX,NMAX))
    !>

    RWORK

    !>          RWORK is REAL array, dimension
    !>                      (NMAX+2*NSMAX)
    !>

    IWORK

    !>          IWORK is INTEGER array, dimension (2*NMAX)
    !>

    NOUT

    !>          NOUT is INTEGER
    !>          The unit number for output.
    !>

Author
    Univ. of Tennessee

    Univ. of California Berkeley

    Univ. of Colorado Denver

    NAG Ltd.

Definition at line 188 of file schkgb.f.

Author

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